zj/b series roots vacuum pump

ZJ/B Series Roots Vacuum Pump

Summarize
ZJ -B Roots vacuum pump is a rotary variable volume vacuum pump, also known as mechanical booster pump, is currently obtained in the middle and high vacuum one of the main pumping equipment, its working principle is similar to Roots blower, is the use of two "8 "type rotor, synchronous rotation in the pump housing, so as to complete the suction and exhaust.
The difference between ZJB -B type with relief valve Roots vacuum pump and ZJ -B type Roots vacuum pump is that the ZJB -B type pump inlet and exhaust are connected, and a self-weight valve is installed vertically on the channel, whose role is to keep the pressure difference between the exhaust and the intake in a controllable value, which is the highest pressure difference allowed when the pump operates reliably. Therefore, this valve is actually an overload automatic protection valve.

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